Let's have the Blogs module as an example, I added the Blogs Permissions View control. On my ...ControlsConfig.xml file, I have mapped the control with the following code:
<!--Provides user interface for managing permissions in the blogs module.-->
Then on the directory specified, I copied the control alongside with its codebehind (the codebehind is on the App_LocalResources folder). Then I uncommented the lines of code on the control that should be uncommented.
The result is that as I've stated before, the options for extra permissions are viewable but that's just it, they're there but it seems that the functionality is absent, like a non-working robot.